IBM has issued patches to fix a serious security problem in the IBM Global Security Kit, or GSKit, a relatively obscure crypto package that implements SSL/TLS encryption algorithms across a variety of IBM products, including IBM i. An old flaw in the underlying RSA crypto algorithm that could let hackers decrypt data in a “side channel” attack has resurfaced under a new moniker: “ROBOT.”

GSKit is an IBM toolkit that implements various encryption-related functions, including symmetric and asymmetric ciphers, random number generation, hashing algorithms, and encryption key management capabilities, for products that need over-the-wire encryption, including IBM i, Linux, and …